Brick grab



July 27, 1937- E. R. HERsHEY 2,088,519

BRICK GRAB lined Nov. 18, 195e s sheets-sheet 2 July 27, 1937 E. R. Hl-:RsHEY BRICK GRAB v Filed Nov. 18. 193e s sheets-sheet zv 2'. .Hershey MWMWM 50 bell crank levers I3 Patented July 27, 1937 "caster Iron Works,vLancaster, Fa., acorpcraf tion. et Pennsylvania Application Noteinbor is, 1ss',1sen1 Noir-11532 .-V 57 I fioiclnnnis. (01.294463) M .The invention forming the subject matter ofs, this application isa brick 'lifter or grab of the type designed to handlelarge unit stacks o f brickV and similar objects, toilift and transportthese:`

stacks as units from'one location to another.

vv.The main object of the invention is`-to provide a brick lifter of this characterwhich Tis ioflight Weightand of. great its weight, andi which can be tured and sold.

cheaply manufacf' f other objects of the invention wiubooomoapparent as the detailed description; thereofproceeds.

Invthe drawings:

lof the invention, parts being -broken away Land others shown in sectionv toillustrate detailsof construction; g

Figure 2 is a sideelevation of the deviceishown 20111 Figure 1; .f

Figure 331s a horizontal section :taken on the line 3-3 of Figures .v1 and 2; and L' Figure 4 is a verticaltransverse section toan enlarged scale, taken-on he line 4-4 of Fig` `'Ihebrick lifter shown .in the drawings; 4corn-- prises a substantially rectangular frame designateclgenerally by'the reference knumeral '.i.v`

This frame comprises a pair of side plates 6 'and 1 secured-at their opposite endsibyftransverse,r

pivot rods 8 and 9 to another pair of side plates I0 and II similar in every respect to the .plates 6 and 1.y Centrally between the pivot rods 8 and 8, the inner plates 1 `ancl.Il)'are suitablyV secured to each' other` by a` transverse platev I2`which may be cast integral withthefplates 1 and I0;

"'As'shown in Figures 2v andv 3, the side 6 and 1 are spaced apart on the pivot rods Band 9, to receive between vthem the bell crank levers" designated generally by the reference numerals I3and I4. These bell crank levers- I3 and I4 are pivoted at their elbows to the pivot rods 8 and 9 of the framework where they extend between the plates 6 and 1. The downwardly extending arms I5 and I6 of these bell crank gripping arms or jaws of the same` length, and are each shaped at their lower ends to receive one'end of grip bars to be described later. .'The other arms I1 and I8 of the respective and I4 extend acrossthe framework between the plates Band 1;`. andi-as shown in Figure 3 are laterallyoffset with respect to each other, in order'to provide for compact-v ness in the structure. Directly above thefree end of the arm I1, a leverilfprojectsradially strength in comparison to Figure 1 is an end. elevation of a, preferred form Way lacross the' frame plates levers constitute the recesses from a --slee've 'zotwnion is mounted to rotate on Y a roar-2 lv which Yextends through apertures suit-` ably formed .inthe'plates 6 and i1. The rod 2Il is parallel 'to the pivotrod v 9;!fand the sleevellII has formed integraltherewith a liftinglever 22,'y

extending substantially..- halfvv wayffac'ross -thejframe.5.11 v f- The lever I 9 is providednear its' free. Vend withy al pivotpin 23`which extends 'slidablyand pivot? ally through'slotsl 24 formed ineachv of a` pairofi links 25, the lower n apertures suitably'formed inthe plates Iiandq. The sleeve"21=has cast: integral therewith', 1 or otherwise'suitably secured thereto',a lever 2st-provided tat its outer end with a pivot "pin30 which:

extends .pivotallyv and slidably througlr slots "#3 Iy formed'in a pair of links 32,1pivotallyr connected at theirlower vends by apin 33 to-the free lend of thej leverr'arm I8of the lbell-crank lever I4.` f "fThe .ro'civ` 28 is'parallel tothe pivot' rod 8; VandA thesleeve 21 "hasfformedfintegral therewith a.

lifting lever 34 which'extends"substantiallyhalf g'rippingiarms Ifand Ilfof'ftlie lifter? toward and from each other :about the'rpivotsB and there is L fprovided'i al lifting 'head designated generally by the 'reference' numeral `'35. This lifting-'head comprises a castingf'36 Vprovided'at"f-itsrcenter l ends'o'f whicharevpivot'ed by* means'of the pins ZGItOI-thef'free end ofthe-bell? cranklever arm 'I-1. i' I A sleeve 21 similar tothe sleevel 20, is-mounted to :rotateon a pivot ro'd 28 which extendsthrough 5:1. In orderto swng'the l cated 4vend asf an: eye y 39 intended to= receive-` a ho'ok from'a hoist cir-traveling cranein'ot-shown) One end of the lifting head 35 is shaped to form 43, and 44 spaced apart Ito f ormvpivot brackets apertured -to receive a pivot7 pin 45155In 'the recessesformed between the 1ugs'40, 4I ,--and'42, the upper ends of a pair of links 46 and 411arepivoted tolswingabout the pin 45u.: V links `46 'and 41' are. Dvte'd tofthe 'free 'endgof vthe lifting arm 3451.15( vrneansiofv :the pivot pin'48., "ln

formed .The lcwerf'ends ofthe theupper end of a pair of `links l49 and5ll are pivoted to thelpin 45; )andthe lower ends. o f the links. as and so are pivoteqgto therme' 'nd'ot 'the clSe thelevers I9 and'295th1'0ughfthe links 25- lifting*lever 22 by means of lthe-pivot pin 5I. V ,Y f 50K Itjwill be evident, particularly/from /Figurell 2 2,088,519 and 32 and arms I1 and I8; toswing the gripping form a stienin'g ilange 18; and is suspended. as arms I5 and I6 inwardly toward each other. 'a whole, from the pivot rod 6 by the springs 14. The lifting mechanism on the other side of This brick lifter is provided with means. oper. the frame 5 mounted between the plates III and able from either side of the lifter, for locking l' 5 II is identical structurally` lwith that mounted the gripping arms in spread apart position dur- 5 between the plates2 and 3. The elements of ing the lowering of the lifter over a stackjof Athis mechanism between plates III and II are bricks, or during the raising of the lifter from not described in detail, but are identified with adepositedstack. 'I'his locking mechanism comthe samereference numerals primedas are'apprlsesfa pair. of `-rods 80 and 8| mounted to slide plied yto the corresponding elements v'supported through apertures 'formed in the plates 6, 1, III 10 between plates 6 and 1. .and II. v'I'hese rods parallel to each other and 'I'he head 3 6 is provided with bosses 52 and to plate I2, are of equal lengths and are spaced 53 equidistantly spaced from the pivot 31. 'Ihese y -equidistantly from opposite sides of plate I2. bosses are bored to receive slidablythe reduced The opposite ends of the rods vSII and 8| are ends 54 and 55 01' guide T0118 56 Bhd 51 vWhich pivoted to handle members 82 and 82', which are l5 are fixed at their lower ends to the transverse "pivoted at their centers to the brackets 83 and 83' projecting laterally outward from the plates 6 59 on these guiderods constitutestops to limitA and II', respectively, f Y the downward movement of the head36 relative I'he rod 80 has secured thereto a pair of latches to the frame 5.y 8l and 84'- adapted tn be rmoved to the left as 20 able aperture in the transverse plate I2. lThe 85 and^85 to lookthe lifting levers 22 and 22" with a nul? 3| `which' 1S Provided in lowered position. Itwiil beobvious from in- 25 with anange'cut to form a bevel gear 62 meshspection of Figure that therods 80 and'fll lng with a bevel gear 63 secured to the endy of always slide `in opposite directions when either. a shaft 64.-- v'I'heshaft 64 is Journled atits inner ofthehandie members 82 or 82' is rotatedabout e end in a bracket 65 suitably secured to the plate its pivot connection cn .the brackets s: or n'. .30 I2;-and' at its V outer end is journaledin abearv- The invention maybe embodied in other spe-V 30 ing bracket 66 clamped to the pivotrod 28. VA ciflc forms without departing fromrthefspiritor hand wheel 61 secured to the outer end of shaft essential characteristicsfof'the invention, and the 64 'facilitates rotation of saidshaft. The lower presentembodiment is therefore to be considered end ofthe rod 6Iihas secured thereto a fiat plate in all respects as illustrative vand notrestrictive. .35 53 '-.dapted to Contact.' Overl a comparatively the scope of the inventionbeing indicated bythe 3 large area, kwith the top of a stack of bricksto. appended-claims ratherV than the foregoing debe lifted.'vr not only" to prevent buckling -of the scription, andrailfchanges which co'mewithin the stack' during. the liftingf thereof, but alsoA to. meaning and'range oi' equivalency ofthe claims IServe as a-depth gaeei'by means oiwhich the aretherefore intended to be embraced therein. 40 lowerA ends oi'. the fgripping arms may beadl what, Iclai'm is; justed in accordance with the height oi the pile 1. A brick* grab including axframe'.' grip jaws ofbrickstobelifted. a

The gripping arms yI3 and 'I3'. as shown 1n swing the free Vends ofthe Jaws towardfan'd from Figures 1and3, are-recessed atl their Vlower ends each other. -a pair Vof rods slida'ble across said to receive the channel iron68 which is suitably frame, means pivoted to said frame, and piv- 45 formed as a -bar-of rubberhaving itsfffacecornamed means in'. position'to hold said'iaws with 5 0 rugated -or grooved to provide a non-slip. griptheir i'ree endsfat apredetermined distance 4from .50;

ping surface. This barliljmaybe secured toathe eachother. f j

channel iron by any suitablemeans such las-the v2; .A brick grab including 'a frame. grip jaws boltsil. The channel ironjiserves as a-braceA pivoted to said frame, means on saidframe to for the lower ends of the arms `I3 andg I3; and swingy the free endsof the jaws toward andfrom a rod 12 serves to brace the upperends 0f VSaid ,each Otherf Da ir 0f lQdS mounted t0 Slidepralarms. lel to each other on said frame. a lever pivoted to 55 An apron-13,'extending across the Aarms I3 one end of veach of said rodsand fulcrumed. to and i3'. has secured to its l,upper end a. number seidframe. and means .Onisaid operablebr cfstrcng learsprmgs 14v nxed tcs1eeves1s pivthe sliding :movement thereof'to-lock the mst 6o oted onthe rod-8. 'Ihe leaf-- springs are bent so nemedmens in position to vhold saida'iaws with .-60 1 n as to. throw the center-.of gravityof the. apron their ,free ends Bft-3' Dredetnnined distance from 'below the axis of the rod Il. Thisarrangement eahnthen -1 fa causes the lower end of the apron 13 to follow r y13u45 brmkjglab including@ flfnle,g rip-J3WS the lcwerencs cfthesrms la and is' as tney plvoted tothe frame. levermeehamsms on oppoy separate wnentne lifter is lowered over e pile' of site endsl of theframe t0 .Swinsthe free ends of B5 bricks', 'l 1g the jaws toward and-from each other. apair of 'I'he lower endV of the A:Miron 13 terminates above IOdS mounted t0y Slide parallel to each other. 0n the grip bar 1o, and isprcvided with bolts 1; said frame yand acrosssaid mechanisms. clever which pass freely thrug'hapertures formed in pivoted to saidframe and to one end of V.each of plates 11 suitably seeuredtoA the-arms -I3` and SaidIOdS torreeiprocte theSIne-*in ODDOsiteidi- I3'. Compression springs 18 surround the bolts rections, Vand-means on therrods for simulta- .16 andare interposed between the apron. 13 and neously locking said mechanisms in positionto the plates 11y to permit yielding contact between hold said jaws ;withtheir free endsat a predethelower endof the apron and: thepile of termined distanceifrom eachV other. l f

bricks. 'Ihe i apron is `bent atits upper end 'to i 4. A'brick/grab including a framagrip Jaws 75 each other, leaf springs pivoted to, said frame,

plates secured at one end to the ends of said springs and depending therefrom to extend across the inner faces of said grip jaws.

5. A brick grab including a frame, grip jaws pivoted to the frame, means on said frame to swing the free ends ofthe jaws toward and from each other, leaf springs pivoted to said frame, plates secured at one end to the ends of said springs and depending therefrom to extend across the inner faces of said grip jaws, and yielding means connecting the lower ends of said plates to the lower ends of said jaws.

6. A brick grab including a frame, bell crank levers pivotally connected to opposite ends of said frame, plates pivoted to the opposite ends of said frame and depending therefrom along the inner faces of the depending arms of said bell crank levers, other levers pivoted to the bell crank levers, links pivoted to the free ends of the horizontal arms of said bell crank levers and slidably and pivotally connectedito the free ends of said other levers, and means on the frame for locking the bell crank levers in spread apart position.

'7. A brick grab including a frame, bell crank levers pivoted at their elbows to opposite ends of said frames, plates extending across the inner faces of the depending arms of said levers, leaf springs pivotally connected at one end of each to said frame, and fixed at the other end of each to the upper ends of said plates, and yieldto the lower ends of said bell crank levers. brick grab including a frame, gripping plates the frame above l jaws pivoted tosaid frame,

said jaws and from each other,

ably connected to the move in a direction thereto, means for plate, plates extending of said jaws,

i 3 means connected to l to swing the free ends thereof 'toward a supporting plate adjust-r center of said frame 'to substantially perpendicular adjusting said supporting necting said plates to opposite endsof said frame,

and yielding Yof said plates means to the lowerends of said jaws. 9. A brick grab vincluding a frame,

connecting the Alower ends pivotedto opposite ends of said frame, means on said frame to swing thefree endsof the jaws toward and from each other and including l'evers pivoted to saidoppos'te ends, rodsslidable parallel to each other onsaid frame, latches secured to said rods and adapted to engage said levers position to hold saidjaws withtheir'free ends at apredetermined distance to lock the same in from each other,

and means pivoted and rods for slldingsaid rods and into locking engagement with said levers.

l0. A brick grab including a frame, grip jaws pivoted to opposite ends of said frame, means on said frame to swing to lock the samev in grip laws l across the inside faces yielding means for pivotally. con-` to said frame theirlatchesy the freev endsl of `the-jaws toward and from each other and includinglevers latches s secured position kto hold said jaws with their freeends at a predetermined distance from each other, and means pivoted to said frame and rods on opposite ends of said frame for sliding said rods and their latches in 'opposite directions into locking engagement with' said levers.

v ELWOOD R. HERSHEY. 

